One might wonder what impact all that heavy metal stuck out in front of the highly aerodynamic profiles honed by truck makers can have on cheating the wind.
Thoughts on Achieving 11 MPG
It's easy to get excited and stay excited about fuel economy when you can see positive change coming from your efforts. When I saw the numbers creeping up into the 10s on a recent test drive in a Peterbilt 579 EPIQ, I started pushing for 11. And it worked.